Initial commit

hooks/detect-solution.sh

@@ -0,0 +1,83 @@
+#!/usr/bin/env bash
+# detect-solution.sh - Detect solution confirmation phrases and suggest codify skill
+# Called by UserPromptSubmit hook to auto-suggest documentation after fixes
+#
+# Hook Order: This hook runs AFTER claude-md-reminder.sh in UserPromptSubmit sequence
+# See hooks.json for the full hook chain configuration
+
+set -euo pipefail
+
+# Read hook input from stdin (contains user's message)
+HOOK_INPUT=$(cat)
+
+# Defense in depth: limit input size to prevent resource exhaustion
+MAX_INPUT_SIZE=100000
+if [ ${#HOOK_INPUT} -gt $MAX_INPUT_SIZE ]; then
+    exit 0
+fi
+
+# Extract user message from JSON input with proper error handling
+USER_MESSAGE=$(echo "$HOOK_INPUT" | jq -r '.userMessage // empty' 2>/dev/null)
+JQ_EXIT_CODE=$?
+if [[ $JQ_EXIT_CODE -ne 0 ]]; then
+    echo '{"error": "jq parsing failed", "exitCode": '$JQ_EXIT_CODE'}' >&2
+    exit 0
+fi
+
+# Exit silently if no message
+[[ -z "$USER_MESSAGE" ]] && exit 0
+
+# Convert to lowercase for case-insensitive matching
+MSG_LOWER=$(echo "$USER_MESSAGE" | tr '[:upper:]' '[:lower:]')
+
+# Detection patterns for solution confirmation
+# These phrases typically indicate a problem was just solved
+# NOTE: Single-word patterns removed to reduce false positives (M4 fix)
+PATTERNS=(
+    # Explicit confirmation phrases (high confidence)
+    "that worked"
+    "it's fixed"
+    "its fixed"
+    "fixed it"
+    "working now"
+    "problem solved"
+    "solved it"
+    "that did it"
+    "all good now"
+    "issue resolved"
+    "finally working"
+    "works now"
+    "that was it"
+    "got it working"
+    "issue fixed"
+    # Gratitude with confirmation (high confidence)
+    "thank you, it works"
+    "thanks, working"
+    "thanks, that fixed"
+    # Note: Removed single-word patterns ("perfect", "awesome", "excellent", "nice", "great")
+    # and ambiguous short phrases ("looks good", "all good", "good to go")
+    # to reduce false positives from general positive feedback
+)
+
+# Check if any pattern matches
+MATCHED=false
+for pattern in "${PATTERNS[@]}"; do
+    if [[ "$MSG_LOWER" == *"$pattern"* ]]; then
+        MATCHED=true
+        break
+    fi
+done
+
+# If matched, output suggestion via additionalContext
+if [[ "$MATCHED" == "true" ]]; then
+    cat <<'EOF'
+{
+  "hookSpecificOutput": {
+    "hookEventName": "UserPromptSubmit",
+    "additionalContext": "<codify-suggestion>\nIt looks like you've solved a problem! Would you like to document this solution for future reference?\n\nRun: /ring-default:codify\nOr say: 'yes, document this' to capture the solution.\n\nThis builds a searchable knowledge base in docs/solutions/ that helps future debugging.\n</codify-suggestion>"
+  }
+}
+EOF
+fi
+
+exit 0